Car roof



Aug 13, 1929- c. D. BoNsALL 1,724,745

GAR ROOFl Filed July l, 1927 /NVENTo Patented Aug. 13, 1929.

UNITED STATES PATENT OFFICE.

CHARLES DAVID BONSALL, OF PITTSBURGH, PENNSYLVANIA, ASSIGNOR T0 P. H.

MURPHY COMPANY, 0F NEW KENSINGTON, PENNSYLVANIA, A CORPORATION OFPENNSYLVANIA.

CAR ROOF.

Application filed J'uly 1,

My invention relates principally to improvement in metal car roofs ofthe allsteel flexible type wherein metal roof sheets extend from eavesto eaves of the car between carlines and are loosely connected alongtheir adjacent margins by weatherproofing seam covers that are rigidlysecured 4to said cai-lines and thus serve to hold roof sheets inposition on the car.

The principal object of the presentanvention is to provide simple andefiicient means for securing the seam covers to the carlines. Otherobjects are cheapness of construction and repair, fewness of parts andease of assembly. The invention consists of the parts and in thecombinationshand arrangement of parts hereinafter described and claimed.

In the accompanying drawing, which forms part of this specification andwherein like numerals refer to like parts wherever they occur,

Fig. 1 is a vertical cross-section through the eaves portion of the carroof embodying my invention, and

F ig. 2 is a cross-section through the seam on the line 2-2 in Fig. 1.

Referring to the accompanying drawing, my invention is shown inconnection with a car roof having roof substructure comprising woodenside plates 3 connected by metal carlines 4, preferably of substantiallyinverted T-shaped cross-section and are provided with depending endfianges 5 as shown in the drawings. Side sheathing boards 6 are securedto the outer face of each side plate and terminate below the upper edgethereof. The ends of the inverted T-shaped' carlines are preferablyseated in transverse grooves 7 provided therefor in the tops of the sideplates, and the outstanding base flanges and depending end fianges ofsaid carliiies are secured to said side plates by vertical andhorizontal bolts 8 and 9, respectively. Eaves flashing strips 10 extendlongitudinally of the car at the eaves and aie shaped and arranged tocover the upper end of the side sheathing and the upper corner of theside plates. As shown in the drawing the fiashing is secured in place bythe horizontal securing bolt 9 for the depending end flanges of thecarlines.

Roof sheets 11 extend from eaves to eaves of the car between carlineswith their end por- 1927. Serial N0. 202,769.

tions movably supported on the tops of side plates. The roof sheets arepreferably provided with upwardly offset side marginal portions 12 thatare inclined upwardly and terminate in upstanding side marginal seamfia-nges 13 that extend from end to end of said sheets. The roof sheetsare also provided at their eaves ends with depending flanges 14 whichoverhang the outer corners of the side plates and terminate in inturnedportions that are normally spaced far enough away from the side platesto permit the sheets to accommodate themselves to distortions of the carframe by sluing thereon.

Veatherproofing members in the form of inverted cliannel-shaped seamcovers 15 straddle adjacent upstanding side marginal fianges 13 of theroof sheets and are rovided at the lower edges of their side walls withoutstanding base flanges 16 which rest flatwise on the sloping sidemarginal portions of adjacent sheets 12. The seam covers are ofsufficient Width to permit play of said flanges therebeneath, and thedepth of said seam covers is sufficient to leave a space between thetops thereof and the tops of the carlines. At their eaves ends, the seamcaps 15 are provided with depending end flanges 17 which cover the spacebetween the corners of adjacent sheets and terminate in inturned endport-ions which extend beneath the inturned portions of the dependingeaves flanges 14 of said sheets. The depending end flanges 17 of theseam covers 15 serve to limit outward sliding movement of the sheets andare normally spaced far enough away from the depending eaves flanges ofsaid sheets to permit play thereof.

The seam covers are rigidly secured to the carlines, preferably at apoint adjacent to the eaves of the car by means of a double or invertedU-shaped strap bolt 18. As shown in the drawing, t-he web of the strapbolt is permanently secured to the underside of the seam cover in directcontact therewith, preferably by means of a rivet 19, and the branchesof said bolt positioned one on each side of the upstanding web of theinverted T-shaped carline. The lower ends of the two branches of thedouble strap bolt terminate in cylindrical portions that extend throughopenings or holes provided therefor in the lateral base fianges of thecarline and are threaded to receive nuts 20. The strap bolt is alsoprovided with a nut lock comprising a perforated strip of metal 2l,which is sleeved on the threaded ends of the depending branches of saidstrap bolt between the securing nuts 20 and the bottom of the carlineand is provided with end projections or tabs 22 adapted to be sent downagainst the sides of the nuts.

The advantages of the above arrangement are its simplicity and cheapnessof construction and ewness ot' parts and the ease with which the seamcovers may be assembled on the car.

lVhat I cla-iin is:

1. A car roof comprising side plates connected by carlines and roofsheets spanning the car from side plate to side plate between,cai-lines, seam covers connecting the adjacent marginal portions ofsaid sheets,v and means for securing said seam covers in position, saidmeans comprising strap bolts rigidly secured to said seam covers indirect contact therewith and removably engaging said carlines.

2. A car roof comprising side plates connected by carlines andvroofsheets spanning the car from side plate to side plate between carlines,seam covers loosely connecting the adjacent marginal portions of saidsheets7 and means for securing said seam covers in position, said meanscomprising double strap bolts arranged with the webs thereof directlycontacting with and rigidly secured to said seam covers and with thebranches thereof removably engaging saidy carlines.

3. A car roof comprising side plates connected by carlines and roofsheets spanning the car from side plate to side plate between carlines,seam covers loosely connecting the adjacent marginal portions ofsaidvsheets7 and means for securing said seam covers in position7 saidmeans comprising inverted U- shaped st-rap bolts permanently secured tothe seam covers with the webs of said bolts in direct contact with theunderside of the seam covers and with the branches or' said boltsremovably engaging said carlines.

Signed at New Kensington, Pa., this 27th day of June, 1927.

CHARLES DAVID BONSALL.

